6325581 has 16 divisors (see below), whose sum is σ = 9220608. Its totient is φ = 3840000.

The previous prime is 6325559. The next prime is 6325607. The reversal of 6325581 is 1855236.

It is not a de Polignac number, because 6325581 - 2⁵ = 6325549 is a prime.

It is a super-2 number, since 2×6325581² = 80025949975122, which contains 22 as substring.

6325581 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6325511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 420 + ... + 3581.

It is an arithmetic number, because the mean of its divisors is an integer number (576288).

Almost surely, 2^6325581 is an apocalyptic number.

It is an amenable number.

6325581 is a deficient number, since it is larger than the sum of its proper divisors (2895027).

6325581 is a wasteful number, since it uses less digits than its factorization.

6325581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4052.

The product of its digits is 7200, while the sum is 30.

The square root of 6325581 is about 2515.0707743521. The cubic root of 6325581 is about 184.9411159078.

It can be divided in two parts, 63255 and 81, that added together give a palindrome (63336).

The spelling of 6325581 in words is "six million, three hundred twenty-five thousand, five hundred eighty-one".